Ceiling-Mounted Patient Support Device for Space-Efficient Positioning

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Solution Overview

Problem

Existing patient positioning systems and support devices in medical imaging and radiotherapy fail to meet requirements for flexibility, minimal interference with surroundings, low weight, cost-effectiveness, and efficient space use, particularly when integrated with multi-joint robots.

Innovation Solution

A patient support device with a coupling region that allows ceiling-mounted connection to a multi-joint robot, enabling self-balancing and space-efficient installation, featuring a support plane between the coupling and underside areas, and incorporating a displaceable member for adjusting patient position and radiation permeability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a patient support device is connected to a ceiling-mounted positioning system, then space efficiency and reduced floor interference are improved, but the device complexity and mounting requirements increase

Engineering Contradiction:
Improvefloor space occupationVSAvoidmounting structure complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patient support device transitions from floor-based support to ceiling-mounted suspension, utilizing the vertical dimension to relocate the support structure. The device is hung from the ceiling via a coupling region, allowing the support plane to be positioned at optimal height while minimizing floor space occupation and interference with surrounding equipment.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Stability of the object's composition

If the coupling region is positioned above the support plane, then self-balancing and stability are improved, but the device height and ceiling clearance requirements increase

Engineering Contradiction:
Improveself-balancing capabilityVSAvoiddevice height
Core Design Contradiction:
Stability of the object's compositionVSLength of stationary object

Solution Approach 1:

The coupling region is positioned above the support plane to create a self-balancing configuration where the center of gravity and coupling point are vertically aligned. This arrangement uses gravitational force to maintain stability without requiring additional active balancing mechanisms, allowing the device to automatically return to its neutral position after patient loading or positioning adjustments.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

3Object-affected harmful factors

If the patient support device is designed with minimal structural interference, then radiation permeability is improved, but the structural strength and load-bearing capacity may be reduced

Engineering Contradiction:
Improveradiation interferenceVSAvoidload-bearing capacity
Core Design Contradiction:
Object-affected harmful factorsVSStrength

Solution Approach 1:

The patient support device employs localized structural elements that provide strength only where needed for patient support, while maintaining open or minimal structures in regions where radiation must pass through. The support plane and immediate patient contact areas are reinforced, while the coupling region and upper support structures are designed with radiation transparency in mind, using spaced components or materials with appropriate radiation penetration properties.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11950943B2Patient support device and patient positioning system
Publication Date: 2024.04.09 BIZLINK ROBOTIC SOLUTIONS FRANCE SAS
  • US11950943B2 patent drawing
  • US11950943B2 patent drawing
  • US11950943B2 patent drawing

AI summary

The disclosure relates to a patient support device (10) that is connectable to a positioning system (12), such as a multi-joint robot (16), the patient support device (10) comprising: a patient support region (18), comprising a front area (22) which defines a support plane (S) for supporting and/or contacting a patient (P) and an underside area (23) substantially facing away from the front area (22); and a coupling region (26) that is configured to be coupled to the positioning system (12), wherein the support plane (S) at least partially extends between the coupling region (26) and the underside area (23). The disclosure further relates to a patient positioning arrangement comprising such a patient support device (10) and positioning system (12).